Power sprayer



Dec. 9, 1947.

H. W. GORE POWER SPRAYER Filed Dec. 8, 1945 5 Sheets-Sheet 1 BYQTW H. W. GORE- POWER SPRAYER 7 Dec. 9, 1947.

5 Sheets-Sheet 2 Filed Dec. 8, 1945 dz'mem.

Dec. 9, 1947. H. w. GCJRE 2,432,309

POWER SPRAYER Filed Dec. 8, 1945 v 5 Sheets-Sheet I5 INVENTOR. flA-W/ XM 5015/5.

im/W H. W. GORE POWER SPRAYER Dec. 9, 1947.

Filed Dec; 8, 1945 5 Sheets-Sheet 4 IN V EN TOR.

H. w. GORE i=owER SPRAYER Dec. 9, 1947.

Filed Dc. 8, 1945 5 Sheets-Sheet 5 INVENTOR. f/E/MY M 60155,

BY 3 E Patented Dec. 9, 1947 UNITED STATES PATENT OFFICE POWER SPRAYER Henry W. Gore, Traverse City, Mich.

Application December 8, 1945, Serial No. 633,602

2 Claims.

This invention relates to power sprayers, and aims to provide in combination with a power liquid sprayer, a mast the height of which depends upon the users needs and which is provided with nozzles grouped in sections adapted to carry the spray horizontally. The mast is balanced on a horizontal pivot and balanced vertically at all times, but it is adapted to be tilted at an angle to the vertical primarily to enable the machine to pass under low telephone and electric wires although the spraying may also, naturally, be done if desired or necessary with the mast thus tilted. The mast is adapted to be raised or lowered as desired or needed, as well as tilted, the control therefor being located at any suitable place such as, for instance, at the tractor seat. The nozzles are grouped to meet the needs of low or high trees. The whole device is mounted on the rear of the spray unit in any suitable manner, such as, for instance, by means of two major bearings, and held in place by four legs bolted to the spray unit.

The above as well as other and additional objects will become apparent in the following description, wherein characters of reference refer to like-numbered parts in the accompanying drawings. It is to be noted that the drawings are intended for the purpose of illustration only, and that it is neither desired nor intended to limit the invention necessarily to any or all of the specific details of construction shown, excepting insofar as they may be deemed essential to the invention.

Referring briefly to the drawings,

Fig. 1 is a side elevational view of the spraye in normal position.

Fig. 2 is a rear elevational view of the same.

Fig. 3 isa fragmentary perspective view of the frame of the device and of the nozzle feed pipes or lines, showing also the mast pivot bearings.

Fig. 4 is a fragmentary enlarged front elevational view of the mast and its supports.

Fig. 5 is a cross-sectional view taken on the line 5-5 of Fig. 1 but omitting all parts except the mast, a fragment of the said frame, and the pivotal supports of the mast in the frame.

Fig. 6 is an enlarged fragmentary side elevational view of the mast.

Fig. 7 is a front view of Fig. 6.

Fig. 8 is a fragmentary cross-sectional view taken on the line 8--8 of Fig. 7.

Fig. 9 is a schematic diagram showing the sup ply tank for the liquid and the supply pipes therefrom to the groups of nozzles as well as the control or valve means therefor.

Fig. 10 is a sectional view through one of the nozzles and its supporting supply tube, taken on the line l0--I0 of Fig. 6.

Fig. 11 is an end view of one of the nozzles.

Fig. 12 is a side elevational view of the device, showing the mast in tilted position.

Referring in detail to the drawings, the numeral Ill indicates the chassis, the numeral II the hitch by means of which the chassis may be hitched to a tractor, not shown, of a conventional power spray unit having the liquid supply tank l2 and the pump l3 mounted thereon. The pump is driven by any suitable means, not shown, to put the liquid in the tank l2 under pressure.

A frame M consisting of a pair of front legs I5 and a pair of inclined rear legs I6, is mounted on the chassis or on the tank l2 by bolting the lower extremities of the legs, or otherwise securing them, thereto. The frame M, as seen in Fig.

3, is of unitary construction, and projecting for-.

ward from its upper extremity are a pair of spaced horizontal bearings I! which receive the ends of a pivot bar I8, or, better, receive the aligned pivot pins Ill. The bearings H are supported on a sheath I9 having beaded edges 20 which fit over the upper ends of the legs I6 and are secured thereto in any desired manner.

A mast 2|, composed of three telescopic sections'22, 23, and 24, of which the section 22 is the lowest, is mounted in the projecting bearings I! by the simple provision of having the pivot pins l8 project from the upper end thereof. A pair of spaced vertical tubes 25 are secured to the section 23, at the sides and forward thereof. by vertically spaced sleeves or collars 26 secured to the section 23. Likewise, spaced collars 21 secure similar spaced tubes 28 to the section 24, and spaced collars 29 secure similar tubes 30 to the lowest section 22. The mast sections 22, 23, and 24 are frictionally telescopic so that the height of the mast may be varied. Limit stops to prevent withdrawal of the sections from each other would be provided but are not shown.

A plurality of feed lines, pipes or hoses is shown at 3| extending upward between and supported by the legs [6. Two of these pipes or hoses, shown at 32, are attached by unions 33 to the two vertical tubes 28 of the top section 24; two others, shown at 34, arejolned by unions 35 to the vertical tubes 25 of the section 23; and another two hoses 36 are joined by unions 3'! to the vertical tubes 30 of the, section 22. From the tubes 28, horizontal nozzles project from one side of. the tube 28 on that side, shown at 38, and similar nozzles 39 project from the other tube 28 in the opposite direction. Likewise, nozzles 40 project from one side of one tube 25 in the same direction as the nozzles 38 and nozzles 4| project in the opposite direction from the other tube 25; and nozzles 42 project from one tube 30 in the same direction as the nozzles 38 and 40 and nozzles 43 project from the other tube 35 in the opposite direction. All-of the nozzles mentioned lie in a common plane.

The outlet 44 from the tank 12 leads through a coupling 45 to a manifold 46 having taps 41, 48, and 49 terminated by valves 50, 51, and 52, respectively. The two hoses 32 lead from the valve 56 through their own control valves 53 and 54; likewise, the two hoses 34 lead from the valve 51 through their control valves 55 and 56; and the two hoses 35 lead from the valve 52 through their control valves 51 and 58. An overflow return tap 59 leads through a valve Gil from the manifold 46 back to the tank I 2.

With all valves closed and pressure up in the tank, if it is desired to spray from all the nozzles on the left-hand side of the mast, Fig. 2, valves 50, and 52 are first opened, and then valves 54, 56, and 58. Conversely, the spray may be readily controlled to pass from the right-hand side, as is obvious. If it is desired to spray only from one side of the top section tubes 28, the valve 53 or 54 is turned on, or for spraying from both sides simultaneously, both valves 53 and 54 are on. Similarly, the tube sections 25 and 35 may be utilized in the same manner, and obviously any desired combination of sections may be used to spray from as desired.

In the case of large trees, the mast may be elongated in an obvious manner through the frictional withdrawal of the upper mast sections to the desired positions, where they are maintained by friction. A guy wire or the like 6|, secured to the top of the mast, is used to tilt the mast into. any position between the vertical and the horizontal as, for instance, into the position shown in Fig. 12. The lower end of the Wire 6| would be located at or near the seat of the tractor, not shown, for convenience of handling, and it would of course be anchored in some way, not shown, The mast is so balanced that it is retained normally by gravity in the upright position shown in Fig. 1.

The nozzles may of course be of any desired construction or form, but the nozzles illustrated are generally of the form having an elongated tubular body or stem 62 coupled to the nozzle tube by a coupling 63, having the through passage 64 extending into the nozzle tube, as shown in Fig. 10,

Among the advantages of the invention which may bementioned are, that it works perfectly on hills as well as on fiat land and regardless of the size and variety of tree or fruit; it has been used successfully with any width of row and height of tree; it is labor saving, and solves the labor problem, in that but one man is needed to operate it; it can be readily taken off and remounted on another spray unit; its capacity is high; it is economical in use of hose, in a minimum loss of spray, and in a minimum loss of spraying time. The cost of construction can be oifset by one seasons use on any fruit farm of' a thousand trees or more.

The materials used in the construction of the apparatus may be any that are found or believed to be suitable for the purpose or purposes, but they should naturally be chosen with a view to maximum efficiency and utility at minimum cost.

Obviously, modifications in form and structure may be made without departing from the spirit and scope of the invention.

Iclaim:

1. A chassis having a pressure. tank thereon adapted to contain liquid under pressure, a frame mounted on the chassis and extending above the level of said tank, a pair of spaced horizontal aligned bearings supported on said frame at the top thereof, a normally upright mast comprising a plurality of telescoping sections, the lowermost of said sections having diametrically opposed pins extending from the sides thereof near its upper end, said pins registering in said bearings, each of said sections having a vertical tube secured to the side thereof, each of said tubes hav-- ing a plurality of nozzles connected at right angles thereto in spaced relationship along the length of the tube, said tank having an outlet, a manifold connected to said outlet, said manifold having a pluralit of taps, liquid conducting tubes joining said taps with said first-named tubes, and valve means in said outlet and in said last-named tubes.

2. The device set forth in claim 1, having means for tilting said mast comprising a cable s cured to the topmost of said sections and extending forward and downward and adapted to be grasped by the operator,

HENRY W. GORE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number 'Name Date 997,034 Batistoni July 4, 1911 1,087,634 Boyce Feb, 17, 1914 2,365,755 Grifiith Dec, 26, 1944 

